Dental cuspidor.



Patented July l5, |902.

J. E. VAN NOSTRAN.

DENTAL CUSPIDOR.

(Application led Dec. 21, 1900.)

No Model.)

visse/1:71.

Jiffy UNrrEn STATES PATENT OFFICE.

JOSEPH E. VAN NOSTRAN, OF CANTON, OHIO, ASSIGNOR OF ONE-HALF TO JOSEPHJ. HAHN, OF CANTON, OHIO.

DENTAL CUSPIDOR.

SPECIFICATION forming part of Letters Patent No. 704,601, dated July1.5, 1902.

Application filed December 21, 1900. Serial No. 40,632. (No model.)

To all whom, t may concern:

Be it known that I, JOSEPH E. VAN Nos- TRAN, a citizen of the UnitedStates, residing at Canton, in the county of Stark and State of Ohio,have invented certain new and useful Improvements in Dental Ouspidors;and I do hereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the annexed drawings,making a part of this speciiication, and to the figures of referencemarked thereon, in which- Figure 1 is a vertical section. perspectiveview.

The present invention has relation to cuspidors designed for use inconnection with dental chairs; and it consists in the different partsand combination of parts hereinafter described, and particularly pointedout in the claims.

Similar numerals of reference indicate corresponding parts in bothfigures of the drawings.

In the accompanyingdrawings, 1 represents Fig. 2 is a shown, and, asshown, itis provided with the inturned flange 2, located at the lupperportion or top of the bowl proper. The bottom or under side of the bowlis provided with the flange 3, which flange `forms a base or support forthe bowl proper. The. bottom or lower portion of the flange 3 isprovided with the flanged bottom 4. To the flange 3 and at a pointintermediate the flange 4 and the bowl proper is connected thesupply-pipe 5, which supply-pipe may lead to any source of supply; butin this instance it is shown connected to a chamber, such as 6. Vithinthe flange 3 is located the tube 7, the bottom or lower end of which isscrew-threaded upon its outer periphery and is'so formed for the purposeof connecting said tube to the top or upper end of the waste-pipe 8,which waste-pipe is screwthreaded upon'its inner periphery at its upperportion. The tube 7 extends upward, and its upper end is-provided withthe outwardextending flange 9, which outward-extending llange is formedof such a size that it will eX- tend over a portion of the bottom of thebowl 1, as illustrated in Fig. 1.

The curved flange 9 is so formed that its eX- the bowl, whichispreferably of the formA treme upper portion will come a short distanceabove the bottom of the bowl 1 for the purpose hereinafter described.

The tube 7is formed of lesser diameter than the inner diameter of theflange 3, so that g when the tube 7, together' with its flange 9, isplaced in proper position with reference to the bowl 1 a chamber 10 willbe formed or provided between the inner periphery of the llange and theouter periphery of the tube 7, said chamber being located directly underthe flange 9 of the tube 7, so that water will find its way through theapertures 11 or 12.

It will be understood that any desired number of apertures 11 may beprovided, so that when water is forced into the chamber 10 it will bedelivered upon the bottom of the bowl 1 in fine streams and by the forceof the water it will be carried toward the wall or llange of the bowl 1,which in-turn will-find its Way toward the center of the bowl, passingover the top of the flange 9 and escaping through the pipe 7, by whicharrangement an outer undergoing current is formed and a return uppercurrent formed, so that whatever finds its way into the cuspidorV in usewill be carried toward the tube 7 and removed. If in the event it isdesired to supply water direct to the outer portion of the bowl, thebottom of the bowl may be provided with a number of passages, such as12, which passages lead fromthe chamber 10 to the outer portions ofthebottom ofthe bowl'l; but this is not absolutely necessary to carryout the object and purposes of the present invention, but may be used asa secondary water-supply.

For the purpose of preventing sewer-gas from escaping into the bowl 1the waste-pipe 8 is provided with the trap 18, by whicharrangement abody of water is always'presentV in said trap except when it is desiredto remove the water from the trap by means of the aperture 14, whichaperture is normally y closed by the plug l5.

' waste-pipe the flange 9 will clamp the bowl,

so as to firmly seat 1 and hold said bowl in proper position.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. The combination of a bowl provided with a chambered flange or baselocated upon the bottom or under side of the bowl, the chamber thereofcommunicating with the bowl, a supply-pipe leading into the chamber ofthe flange, a pipe 7 located in the chamber and supported in fixedposition, said portion of the pipe located in the chamber formed of lessdiameter than the diameter of the chamber and its upper end providedwith a curved flange, said curved iiange located over a portion of thebottom of the bowl and provided with apertures communicating with thechamber in the iiange and the chamber of the bowl, substantially as andfor the purpose specified.

2. The combination of abowl provided with a chambered iiange or base, asupply-pipe leading into the chambered flange, a pipe 7 located in thechambered iiange and provided with a curved top and the bottom of thebowl provided with passages extended from the chambered flange outwardand communicating with the bottom of the bowl all arranged,substantially as and for the purpose specified.

In'testimony that Ifclaim the above I have hereunto subscribed my namein the presence of two Witnesses.

l/Vitnesses:

F. W. BOND, J. A. JEFFERS.

